package com.ruoyi.system.service;

import java.util.List;
import com.ruoyi.system.domain.SysUserStudent;

/**
 * yonghuService接口
 * 
 * @author ruoyi
 * @date 2024-02-10
 */
public interface ISysUserStudentService 
{
    /**
     * 查询yonghu
     * 
     * @param userId yonghu主键
     * @return yonghu
     */
    public SysUserStudent selectSysUserStudentByUserId(Long userId);

    /**
     * 查询yonghu列表
     * 
     * @param sysUserStudent yonghu
     * @return yonghu集合
     */
    public List<SysUserStudent> selectSysUserStudentList(SysUserStudent sysUserStudent);

    /**
     * 新增yonghu
     * 
     * @param sysUserStudent yonghu
     * @return 结果
     */
    public int insertSysUserStudent(SysUserStudent sysUserStudent);

    /**
     * 修改yonghu
     * 
     * @param sysUserStudent yonghu
     * @return 结果
     */
    public int updateSysUserStudent(SysUserStudent sysUserStudent);

    /**
     * 批量删除yonghu
     * 
     * @param userIds 需要删除的yonghu主键集合
     * @return 结果
     */
    public int deleteSysUserStudentByUserIds(Long[] userIds);

    /**
     * 删除yonghu信息
     * 
     * @param userId yonghu主键
     * @return 结果
     */
    public int deleteSysUserStudentByUserId(Long userId);
}
